Sleep Quality and Physical Stress in Emergency Doctors During 24-Hour Shifts Measured by Wearable Devices

Participants wore a smartwatch continuously for 30 days to record sleep architecture and heart rate variability-based stress indicators.

• Shift-based work schedules are associated with disruptions in circadian rhythm among healthcare workers.
• Emergency physicians experience high-intensity workloads and prolonged 24-hour shifts.
• Increased occupational strain could result from these demanding work conditions.
• Physiological parameters were compared between 24-hour shifts and at-home settings.
• Four professional-experience groups were analyzed for variations in sleep and stress indicators.

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